She says she's seen it three times since last week slithering around her home and the vacant home next door, but no one can catch it. The species is not native to Memphis, and wildlife experts believe the snake either escaped or was let go by its owner.

"It was huge and it scared the living daylights out of me," Constance Carson told WREG. "My initial reaction — I ran. I screamed."

Now the whole neighborhood is on alert.

Constance Carson snapped these pictures of what she's been told is a python on her North Memphis porch.

"It was curled up there, and it went on the side of the porch and stuck its head up."

Carson said she and her neighbors have called multiple wildlife groups, who told her it was a python, its length estimated up to five feet long.